Professor Randall and Lucinda invite Brandon and D'Shawn over for dinner. Steve tries to avoid the smitten Laura. Mr. and Mrs. Carson plan to turn Brenda and Stuart's wedding into a major social event. The couple decides to sneak off to Las Vegas and elope. Brandon and the gang follow them in the hopes of changing their minds. They pretend to be supportive, but play on the couple's insecurities by constantly dropping hints about the difficulties of marriage. Jim and Cindy dash off to Las Vegas to stop the wedding, but Brenda and Stuart have already called it off. Donna arranges a truce between David and Kelly. Music: ""You Keep Me Hangin' On"" by the Supremes (#1, 1966); ""It's Not Unusual"" by Tom Jones (#10, 1965); ""Let's Get It On"" by Marvin Gaye (#1, 1973); ""When I Fall in Love"" (Doris Day - #20, 1952), played by band